Tuesday, January 31, 2012

Some Audio Shielding

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As I was aligning my "23/24 Re-cycle" 17 meter SSB rig, I noticed the tell-tale sounds of RF getting into my audio. (I guess I sh...
Monday, January 30, 2012

My .02 KW Linear Amplifier

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Once again, die-hard QRP guys should probably look away at this point... My Cycle 23/Cycle 24 refurbishing project continues. The JBOT amp...
4 comments:
Sunday, January 29, 2012

Putting 17 Meter SSB Station On the Air

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Magnificent, don't you think? The sun is rising over Northern Virginia, and 17 meters is starting to come alive. Yesterday I finished...
2 comments:
Saturday, January 28, 2012

A Good Deal on SolderSmoke -- The Book 30% off!

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Thirty percent off from Lulu! That's pretty good! Offer ends on January 31. See "SolderSmoke -- Global Adventures in Wireless El...
Friday, January 27, 2012

Some Amazing German Knack

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Michael, DL4MGM, sends us this report from a country in which "the knack" has deep linguistic and cultural roots. Wow, that'...
3 comments:
Wednesday, January 25, 2012

Toroidal Travails II

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Steve Smith sent me a good article on broadband transformers. Reading through it, it occurred to me that perhaps using a heavier gauge wire...
3 comments:
Tuesday, January 24, 2012

Toroidal Transformers: Does Size Matter?

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I continue to tweak and peak the JBOT amplifier in the Azores 17 SSB transmitter. On this version I used some FT-50-43 toroidal cores inste...
8 comments:
Sunday, January 22, 2012

Some unbridled Australian enthusiasm... (Two Videos from Oz)

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Our book: "SolderSmoke -- Global Adventures in Wireless Electronics" http://soldersmoke.com/book.htm Our coffee mugs, T-Shirts, bu...
4 comments:
Saturday, January 21, 2012

JBOT Installed in Azores 17 Meter SSB Rig

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Even though one of their Coronal Mass Ejections is due to hit us soon, the radio gods have been quite kind to me this morning. I installed...
Friday, January 20, 2012

The Father of the CK722 (and RadioShack!)

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Steve Smith of SolderSmoke's West Coast bureau sent us the link to this article about a very interesting guy who made enormous contribu...
Thursday, January 19, 2012

DIY at the V&A (Victoria and Albert Museum)

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http://blog.makezine.com/2012/01/17/the-power-of-making-at-the-va/ Power of Making from Juriaan Booij on Vimeo . One of the many perks tha...
Tuesday, January 17, 2012

Another JBOT Amplifier

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Over the weekend I built another JBOT 5 watt linear amplifier ( design by Farhan ). I used a nice piece of copper-clad board that Dave, W8...
4 comments: